Splunk, founded in 2003 in San Francisco, USA, is a global leader in data and observability (acquired by Cisco), providing log management, SIEM, ITOA, and application monitoring at petabyte scale for 10,000+ enterprise customers.
Logentries is Rapid7's cloud log analytics platform, offering real-time log search, smart alerts, and security event correlation, now folded into the Rapid7 Insight platform.
Founded in 2000 and headquartered in Boston, Massachusetts, Rapid7 is a leader in cybersecurity data analytics and security operations. Known for the Insight platform (vulnerability management, SIEM/EDR) and the Metasploit penetration testing framework, serving 11,000+ customers globally.
Sumo Logic, founded in 2010 in Redwood City, California, is a pioneer in cloud-native log management and observability (NASDAQ: SUMO). Its platform unifies log analytics, SIEM, and APM capabilities.